Simple multi video format test - x264, x265 and webm

[ricardouk]

Source - 1 minute dvd clip, cropped and resized
Used ffmpeg (28/09/2015) - http://ffmpeg.zeranoe.com/builds/
Video: 500k on the 3 formats, 2 pass
Audio: 128k, not relevant for this "quick" test


PC:
Cpu: AMD Athlon II 2.90ghz dual core
Memory: 2GB


Conversion time:
x265 - 18 minutes - medium preset
vp9 - 12 minutes - default preset
vp8 - 2 minutes and 45 seconds - default preset
x264 - 50 seconds - main profile

Quality (from best to worst)
1º - x265
2º - vp9
3ª - vp8, x264

CPU Usage (while viewing the video with MPC-HC):
x265 - 18%
Vp9 - 9%
Vp8 - 7%
x264 - 5%

Notes: By increasing the x264 video vitrate by 200k it would match the x265 quality, i was surprised by the vp8 quality and encode times, encoding with vp9 takes so long even longerrrrrrrr with x265 (18minutes for a 1min clip)

Despite the better quality i'll still be using x264 to stream video or for dvds/bluray backups.

In no way my test is perfect, the quality test/rank was based on my observation of the videos/screenshots of same scenes. Hope it helps anyone.

here's the videos
https://www.dropbox.com/s/bkef1r3s6h9h2i3/videos.zip?dl=0